Maxint R&D / Mbed 2 deprecated RETRO_LCD_PerformanceTest

Simple program for the RETRO to compare the performance of the DisplayN18 and LCD_ST7735 libraries.

Dependencies:   LCD_ST7735 mbed

This is a very simple program for the RETRO to compare the performance of some of the primitives of the DisplayN18 and LCD_ST7735 libraries

WARNING - WARNING - WARNING

If you're sensitive to ugly coding techniques, lack of best practice, ignorance of proper design patterns, abuse of object orientation or to total disregards of any coding guidelines, then don't - I repeat - DON'T look at this code...

P.S. Regardless the performance, I do think the N18 library has a much nicer font!

main.cpp

Committer:
maxint
Date:
2015-01-16
Revision:
1:e3193760dd98
Parent:
0:59d6b70df5a4
Child:
2:dcf8e6db342d

File content as of revision 1:e3193760dd98:

////////////////////////
//
// Simple program for the RETRO to compare the performance of the DisplayN18 and LCD_ST7735 libraries
//
///////////////////////

#include "mbed.h"
#include "DisplayN18.h"
#include "Color565.h"
#include "font_IBM.h"
#include "LCD_ST7735.h"

int testDisplayN18()
{   // test N18 library functions
    DisplayN18 disp;
    Timer tPerformance;    // timer used for measuring performance
    char buf[256];
    int iPerfMs=0;
    int iStartUs=0;

    tPerformance.start();      // start the timer

    // text
    iStartUs=tPerformance.read_us();
    disp.clear();
    sprintf(buf,"drawString...");
    for(int i=1; i<100; i++)
    {
        disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, i, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    }
    sprintf(buf,"drawString:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // rectangles
    iStartUs=tPerformance.read_us();
    disp.clear();
    sprintf(buf,"drawRect...");
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, 0, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    for(int i=1; i<100; i++)
    {
        disp.drawRect(0, 0, i, i, DisplayN18::GREEN);
    }
    sprintf(buf,"drawRect:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // filled rectangles
    iStartUs=tPerformance.read_us();
    disp.clear();
    sprintf(buf,"fillRect...");
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, 0, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    for(int i=1; i<100; i+=2)
    {
        disp.fillRect(0, 0, i, i, DisplayN18::GREEN);
    }
    sprintf(buf,"fillRect:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // circles
    iStartUs=tPerformance.read_us();
    disp.clear();
    sprintf(buf,"drawCircle...");
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, 0, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    for(int i=1; i<100; i++)
    {
        disp.drawCircle(i, i, i/2, DisplayN18::GREEN);
    }
    sprintf(buf,"drawCircle:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // filled circles
    iStartUs=tPerformance.read_us();
    disp.clear();
    sprintf(buf,"fillCircle...");
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, 0, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    for(int i=1; i<100; i+=2)
    {
        disp.fillCircle(i, i, i/2, DisplayN18::GREEN);
    }
    sprintf(buf,"fillCircle:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // lines
    iStartUs=tPerformance.read_us();
    disp.clear();
    sprintf(buf,"drawLine...");
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, 0, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    for(int i=1; i<100; i++)
    {
        disp.drawLine(0, 0, i, 100, DisplayN18::GREEN);
    }
    sprintf(buf,"drawLine:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    disp.clear();
    sprintf(buf,"Total:%u ms", iPerfMs);
    disp.drawString(DisplayN18::WIDTH / 2 - (DisplayN18::CHAR_WIDTH + DisplayN18::CHAR_SPACING) * strlen(buf) / 2, DisplayN18::HEIGHT-DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    wait(2);

    return(iPerfMs);
}

int testDisplayST7735()
{   // test ST7735 library functions
    LCD_ST7735 disp(
        P0_19,
        P0_20,
        P0_7,
        P0_21,
        P0_22,
        P1_15,
        P0_2,
        LCD_ST7735::RGB);
    Timer tPerformance;    // timer used for measuring performance
    char buf[256];
    int iPerfMs=0;
    int iStartUs=0;

    tPerformance.start();      // start the timer
    disp.setOrientation(LCD_ST7735::Rotate270, false);
    disp.setForegroundColor(Color565::White);
    disp.setBackgroundColor(Color565::Blue);
    disp.clearScreen();
    
    // text
    iStartUs=tPerformance.read_us();
    disp.clearScreen();
    sprintf(buf,"drawString...");
    for(int i=1; i<100; i++)
    {
        //disp.drawString(font_ibm, disp.getWidth / 2 - (8 + 0) * strlen(buf) / 2, i, buf);
        disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, i, buf);
    }
    sprintf(buf,"drawString:%u ", tPerformance.read_us()-iStartUs);
    //disp.drawString(font_ibm, disp.getWidth / 2 - (8 + 0) * strlen(buf) / 2, disp.getHeight-8, buf);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // rectangles
    iStartUs=tPerformance.read_us();
    disp.clearScreen();
    sprintf(buf,"drawRect...");
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 0, buf);
    for(int i=1; i<100; i++)
    {
        disp.drawRect(0, 0, i, i, Color565::Blue);
    }
    sprintf(buf,"drawRect:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // filled rectangles
    iStartUs=tPerformance.read_us();
    disp.clearScreen();
    sprintf(buf,"drawRect...");
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 0, buf);
    for(int i=1; i<100; i+=2)
    {
        disp.fillRect(0, 0, i, i, Color565::Yellow, Color565::Blue);
    }
    sprintf(buf,"drawRect:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // circles
    iStartUs=tPerformance.read_us();
    disp.clearScreen();
    sprintf(buf,"drawCircle...");
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 0, buf);
    for(int i=1; i<100; i++)
    {
        disp.drawCircle(i, i, i/2, Color565::Blue);
    }
    sprintf(buf,"drawCircle:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // filled circles
    iStartUs=tPerformance.read_us();
    disp.clearScreen();
    sprintf(buf,"fillCircle...");
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 0, buf);
    for(int i=1; i<100; i+=2)
    {
        disp.fillCircle(i, i, i/2, Color565::Yellow, Color565::Blue);
    }
    sprintf(buf,"fillCircle:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    // lines
    iStartUs=tPerformance.read_us();
    disp.clearScreen();
    sprintf(buf,"drawLine...");
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 0, buf);
    for(int i=1; i<100; i++)
    {
        disp.drawLine(0, 0, i, 100, Color565::Blue);
    }
    sprintf(buf,"drawLine:%u ", tPerformance.read_us()-iStartUs);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    iPerfMs+=tPerformance.read_ms();
    wait(0.5);

    disp.clearScreen();
    sprintf(buf,"Total:%u ms", iPerfMs);
    disp.drawString(font_ibm, 160 / 2 - (8 + 0) * strlen(buf) / 2, 128-8, buf);
    wait(2);

    return(iPerfMs);
}


main()
{
    int iDisplayN18=testDisplayN18();
    int iDisplayST7735=testDisplayST7735();
    char buf[256];
    
    DisplayN18 disp;
    disp.clear();
    sprintf(buf,"Totals --->");
    disp.drawString(0, 0, buf, DisplayN18::WHITE, DisplayN18::BLACK);
    sprintf(buf,"N18:    %u ms", iDisplayN18);
    disp.drawString(0, DisplayN18::CHAR_HEIGHT, buf, DisplayN18::GREEN, DisplayN18::BLACK);
    sprintf(buf,"ST7735: %u ms", iDisplayST7735);
    disp.drawString(0, 2*DisplayN18::CHAR_HEIGHT, buf, DisplayN18::BLUE, DisplayN18::BLACK);

    
    DigitalOut led1(P0_9, false);
    DigitalOut led2(P0_8, true);

    while (true) {
        led1 = !led1;
        led2 = !led2;
        wait(.5);
    }

}